Corn-stubble cutter



(No Model.) y

H. B. IVINS 8v A B. DUNPHEY.

- CORN STUBBLB GUTTER.

No. 534,266. l Patentedfe'b. 19, 1895.

HARRY B. IVINS, OF MEDFORD, AND AUBREY G. DUNIHEY, OF MARLTON,

NEW JERSEY.

CORN-STUBBLE CUTTER.

SPECIFICATION forming part of Letters Patent No. 534,266, dated February 19, 1895.

Appnmiou inea @eater 30,1894. sen-a1 No. 527.461. (No model.)

To all whom it may concern: ward and outward slope, and their outer edges Be it known that we, HARRY B. IVINS, residare sharpened to move over the ground and ing at Medford, and AUBREY G. DUNPHEY, reshave the stubble off close to the roots. The siding at Marlton, in the county of Burlingforward end or nose b2, of the knife is made 55 5 ton,State of NewJ ersey, citizens of theUnited ,Y sufficiently sharp to brush the stubble to its States, have invented certain new and useright or left as it passes along and direct the ful Improvements in Corn-Stubble Cutters; stubble to the action of the cutting edges. and we do declare the following to be a full, This knife can be raised or lowered and thereclear, and exact description ofthe invention, by be thrown in or out of use by means of a 6o Io such as will enable others skilled in the art to hand lever f3 fulcrumed on the tongue in which it appertains to make and use the front of the axle, and it can be held in any same, reference being had to the accompanydesired position by means of the usual pawl ing drawings, and to the letters of reference and ratchet mechanism f4. The seat g is semarked thereon,which form a part of this cured to the rear end' of the tongue by means 65 specification. of a rearwardly extending bar b. Beneath Our invention relates to those corn stubble the seat and following behind the knife e is cutters carried on wheels, and provided with a series of disks h, mounted upon obliquely stubble cutting knives disposed before hardisposed shafts h which shafts are in turn rowing. and cutting devices. mounted in a frame h2 pivotally suspended 7o zo The object of our invention is to provide a from the axle b. This frame and hencepthe stubble cutting machine of more simple and knives can be raised and lowered by means durable construction and whose parts can be of a lever t', fulcrumed on the tongue and easily and quickly manipulated. locked at different adjustments by pawl and A further object of our invention is to proratchet devices i. The lower end of the lever 7 5 vide a peculiarly construe-ted stubble knife is connected with the fram'e h2 by'means of and to employ in connection therewith a serods j. The disk shafts besides being disries of adjustable clod cutters so disposed as posed obliquely to the direction in which the to more effectually cut and break up the roots machine moves, also extend upward toward of the stubble, and at the same time level the the center of the machine thereby giving the 8o 3o the corn hill so that the ground will be thordisks a slight inclination from their true veroughly harrowed and left in excellent conditical position with their lower ends convergtion after the machinehas passed over it. To ing toward each other.v rlhe disks are spaced accomplish this purpose we employ those pe-v apart at equal distances at` their converging culiar features and combinations of parts edges and eachdisk is slightly dished, the de- 3 5 more fully described hereinafter and pointed gree of dish being important to the sucout in the claims. cessful operation of the machine. Interven In the accompanying drawings: Figure 1, ing lingers Z are attached to the disk frame represents a side elevation of our complete and keep them clear from the accumulation invention; Fig. 2, a top view, and Fig. 3, a rear` of matter during their operation. 9o 4o elevation thereof. i The shafts on which the disks 'are mounted The reference letter a denotes an ordinary are also rendered capable of adjustment for pair of traction Wheels mounted on an axle the purpose of regulating their angle of inclib, provided with the usual tongue c, these nation, by means of adjustable boxes m, atparts forming, as it were, the sulky which cartached to the under side of the frame, the 45 ries the cutting and harrowing mechanism. boxes in the contiguous ends of the shafts be- Suspended from the axle b by means of a ingconstructed to permit of such adjustment. hanger d is a substantially V-shaped cutting Thus constructed the operation of our inknife ehaving its pointed portions extendingv vention is as follows: The wheels are placed toward the front of the machine. This knife astride a row of corn stubble and so-that the roc 5o comprises a pair of flaring wings f, the lower point of the knife will be in line therewith. flanges f of which are given a gradual clown- As the machine advances the knife will pass on one side or the other of the stubble and shave it oi closeto the roots. After the knife has passed over and left the roots and cut stubble behind, the series of disks follow and cut the roots and stalks, and at the same time levels and harrows the ground and leaves it in condition for planting or further treatment. The inclined adjustment of the rotary disks has the effect of throwing the earth laterally and turning it over to more effectually cultivate the soil, and they can be adjusted up and down in relation to the ground, to any desired extent by the manipulation of the hand lever in front of the drivel'.

Having thus described our invention, what` We claim as new, and desire to secure by Letvided with a series of concavo-convex disks ters Patent, is-

l.. In a corn stubble cutter,.the combination with the supporting wheels and their axle,` ofra V-shaped knife pivotally suspended from the axle, said knife having its points extending forward,in combination with a pivotally suspended frame carrying obliquely disposed disks, and means substantiallyas described, for raising and lowering the knife and disks.

2. In a corn stubble cutter, the combination of a substantially V-shaped and horizontally disposed knife, in combination with a pivotally suspended frame provided withoblquely disposed rotary disks, substantially as described.

3. In combination with Wheels and their axles, a stubble cutting knife adj ustably suspended therefrom, in combination with a series of disks or clod cutters having oblique axes provided with cleaning lingers extending between the disks, in the manner and for the purpose substantially as described.

4. Incombination with .traction wheels and their axle, a corn stubble cutting knife having diverging cutting edges, in combination with an adjustable frame provided with obliquely disposed rotary disks.

5. In a corn stubble cutter, the combination with a horizontally disposed cutting knife,

2 -havi-ng blades converging toward the front of the machine, with an adjustable frame pivotally suspended to the wheel axle and prohaving their vortexes facingeach other, substantially Vas described.

6. In combination witha-fore-runningstubble cutting knife, a pivotally suspended adjustable frame, provided with obliquely disposed rotary cuttingdisks the lower ends of `which converge-to a common center, substantially as described.

In witness whereof we affix our signatures in presence of. two witnesses. l

HARRY l. IVINS. AUBREY G. DUNPl-IEY. Witnesses:

RHEsA G. DU Bois, GEO. R. HAMLIN. 

